import java.io.*;
abstract class Shape {
String objectName = " ";
Shape(String name) { this.objectName = name; }
public void moveTo(int x, int y)
{
System.out.println(this.objectName + " "
+ "has been moved to"
+ " x = " + x + " and y = " + y);
}
abstract public double area();
abstract public void draw();
}
class Rectangle extends Shape {
int length, width;
Rectangle(int length, int width, String name)
{
super(name);
this.length = length;
this.width = width;
}
@Override public void draw()
{
System.out.println("Rectangle has been drawn ");
}
@Override public
[2021] Diferencia entre la clase abstracta y la interfaz en Java {DH}
